purge_processor_cron.module in Purge 8.3

Purge Cron Processor.

File

modules/purge_processor_cron/purge_processor_cron.module

<?php

/**
 * @file
 * Purge Cron Processor.
 */
use Drupal\purge\Plugin\Purge\Purger\Exception\CapacityException;
use Drupal\purge\Plugin\Purge\Purger\Exception\DiagnosticsException;
use Drupal\purge\Plugin\Purge\Purger\Exception\LockException;

/**
 * Implements hook_cron().
 */
function purge_processor_cron_cron() {
  $purgePurgers = \Drupal::service('purge.purgers');
  $purgeProcessors = \Drupal::service('purge.processors');
  $purgeQueue = \Drupal::service('purge.queue');

  // Do not continue when the cron processor isn't enabled.
  if (!($processor = $purgeProcessors
    ->get('cron'))) {
    return;
  }

  // Claim zero or more items from the queue and feed it to the purgers service.
  $claims = $purgeQueue
    ->claim();
  try {
    $purgePurgers
      ->invalidate($processor, $claims);
  } catch (DiagnosticsException $e) {

    // Diagnostic exceptions happen when the system cannot purge.
  } catch (CapacityException $e) {

    // Capacity exceptions happen when too much was purged during this request.
  } catch (LockException $e) {

    // Lock exceptions happen when another code path is currently processing.
  } finally {
    $purgeQueue
      ->handleResults($claims);
  }
}

Functions

Name	Description
purge_processor_cron_cron	Implements hook_cron().